601061666677 has 2 divisors, whose sum is σ = 601061666678. Its totient is φ = 601061666676.

The previous prime is 601061666657. The next prime is 601061666717. The reversal of 601061666677 is 776666160106.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 363191843716 + 237869822961 = 602654^2 + 487719^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-601061666677 is a prime.

It is a super-2 number, since 2×601061666677² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (601061666657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300530833338 + 300530833339.

It is an arithmetic number, because the mean of its divisors is an integer number (300530833339).

Almost surely, 2^601061666677 is an apocalyptic number.

It is an amenable number.

601061666677 is a deficient number, since it is larger than the sum of its proper divisors (1).

601061666677 is an equidigital number, since it uses as much as digits as its factorization.

601061666677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2286144, while the sum is 52.

The spelling of 601061666677 in words is "six hundred one billion, sixty-one million, six hundred sixty-six thousand, six hundred seventy-seven".